Open5GS v2.6.4 is vulnerable to Buffer Overflow.

published 2024-07-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-38420

cvss: 8.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Open5GS v2.6.4 is vulnerable to Buffer Overflow. via /lib/pfcp/context.c.

Patch / fix

links 1

github.com/open5gs/open5gs@2fbc445 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-07-17)

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/open5gs/open5gs/issues/2585 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected products

open5gs open5gs

Classification

Weakness

CWE-122 Heap-based Buffer Overflow
CWE-787 Out-of-bounds Write

References

github.com /open5gs/open5gs/commit/2fbc445d32aa7749166396a9c055a199f90a1b01
patch
github.com /open5gs/open5gs/issues/2585
exploit, issue-tracking, third-party-advisory

Sources

CVE List CVE-2024-40129
NVD CVE-2024-40129

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary